Appliance base



FIG. 1 depicts a front perspective view of an appliance base of the present disclosure;

FIG. 2 depicts a front view thereof;

FIG. 3 depicts a rear view thereof;

FIG. 4 depicts a right side view thereof;

FIG. 5 depicts a left side view thereof;

FIG. 6 depicts a top view thereof; and,

FIG. 7 depicts a bottom view thereof.

The broken lines in the drawings depict portions of the appliance base that form no part of the claimed design. 

CLAIM The ornamental design for the appliance base, as shown and described. 